The Earth's Magnetic Field Could Flip Within Our Lifetime

The Earth's Magnetic Field Could Flip Within Our Lifetime

Earth's magnetic field is constantly shifting, and roughly every 200,000 to 300,000 years it flips north and south completely. We're currently overdue for a switcheroo—and scientists now say it could happen in a time as short as 100 years, potentially altering life in unexpected ways.

It was long thought that these reversals took as many as 7,000 years to completely switch, according to a 2004 study funded by the National Science Foundation. But over the past few years, other scientists have suggested that the shifts have occurred at speeds previously unimagined. And a brand-new study published in the Geophysical Journal International by a team of scientists from Europe and the U.S. sheds even more light on these speedy changes—suggesting that the last 180-degree flip only took about 100 years.

Read more @ http://gizmodo.com/the-earths-magnetic-field-could-flip-within-a-single-li-1647314349

"What lies behind us and what lies before us are small matters compared to what lies within us."  ~ Ralph Waldo Emerson ~